Here is another Fortnite figure I am not sure if he is a battle droid of some kind or a human wearing armor. I like to think of Omega as a battle droid though.
The Omega figure was in the 1st wave of Fortnite figures and was packaged in the Early Game Survival Kit packaging where he came with a full set of gear and some weapons.
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Omega is still pretty newish. He can be found in many outlet stores like ROSS or Burlington Coat Factory. Amazon is always my go to place for good deals on Fortnite figures.